public void mockOperationRemoved(MockOperation mockOperation) { SoapUITreeNode treeNode = getTreeModel().getTreeNode(mockOperation); if (mockOperationNodes.contains(treeNode)) { getTreeModel().notifyNodeRemoved(treeNode); mockOperation.removePropertyChangeListener(propertyChangeListener); mockOperationNodes.remove(treeNode); } else { throw new RuntimeException("Removing unkown mockOperation"); } }